Alternating-gas-burner attachment.



P. G. HmsT. ALTBRNATING GAS BURNER ATTACHMENT.

APPLICATION FILED MAB.. 9, 1911.

Patented N ov. 28, 1911.

WITNESSES @c//'a7e2/ ATTORNEYS BY d/M #zz/1f COLUMBIA PLANQGRAPH C04. WASHINGTON. D C.

iran sans r t nien.

ALTERNATINGr-GAS-BURNER ATTACHMENT.

To all whom Lt may concern:

Be it known that I, FRANKLIN Gr. HIRs'r, a citizen of the United States, residing in the city and county of Philadelphia, State of Pennsylvania., (post-office address 1226 North Nineteenth street,) have invented a new and useful Alternating-Gas-Burner Attachment, of which the following is a specification.

This invention relates to a pressure regulator for gas and more particularly to a device for alternately opening and closing a conduit or burner to a gas supply.

It has for an object to provide a mechanism which will permit gas-to flow in a conduit for a predetermined length of time, giving a light during that interval and then cutting ofi' the supply for a period and then again allowing free flow.

It has for a further object to provide a regulator mechanism for use in connection with advertising and display signs which are illuminated by gas and by which the sign or the like is made visible and then invisible.

It further consists of other novel features of construction, all as will be hereinafter fully set forth.

For the purpose of illustrating my invention, I have shown in the accompanying drawing one form thereof which is at present preferred by me, since the same has been found in practice to give satisfactory and reliable results, although it is to be understood that the various instrumentalities of which my invention consists can be variously arranged and organized and that my invention is not limited to the precise arrangement and organization of these instrumentalities as herein shown and described.

Figure 1 represents a vertical section of a device embodying my invention. Fig. 2 represents a section on line -m, Fig. 1.

Similar numerals of reference indicate corresponding parts in the iigures.

Referring to the drawings: 1 designates a casing or chamber of suitable material, having in the present instance, top and bottom Specification of Letters Patent.

Application filed March 9, 1911.

Patented Nov. 28, 1911. Serial No. 613,306.

caps 2 and 3 secured by the usual threaded construction 4, as will be apparent. The cap has secured thereto a nipple 5 forming the inlet opening 6 to the interior of the casing 1 and by means of which the gas is conveyed thereinto.

7 designates an outlet pipe or conduit communicating with the interior of the casing 1 and leading to a suitable illuminating device. This outlet conduit 7 is provided with a port with which communicates the by-passv 8, here shown as formed in the cap 2, the latter having therein the port 9 by means of which a small supply of gas ma be led from the casing 1 into the outlet 7 and maintain a pilot light burning during the time the illuminating device is eX- tinguished. In the by-pass is a needle valve 10 for controlling the port 9 and consequently regulating the pilot light.

11 designates, in the present instance, a suitable bushing having screw threaded connection with the outlet conduit 7 and carrying thereon a valve 12 adapted to close the inner end of the said outlet. This valve is preferably mounted on a pivot 13 in the ears 14 of the bushing 11 and is provided with a lug 15 serving the purpose of a stop to limit the opening movement of the said valve. The valve 12, in the present instance, is operated by the pressure of the gas supply through the medium of a float or pressure chamber 16 secured by means of a rod 17 to the said valve 12, the connection in the present instance permitting relative movement between the rod 17 and the said chamber 16. This movement is made possible by forming an aperture 18 in the chamber 16 through which the rod 17 passes and terminates in a head 19, as will be apparent. The opposite end of the rod 17 likewise passes through an opening 20 formed, as here shown, in a iange 21 secured to the valve 12 and in order that due allowance may be made for movement of the chamber 16, the head 22 is suitably rounded on its face to permit proper action of the parts. It will be noted that one end of the chamber 16 is open to permit the gas entering the inlet 6 to pass to the interior thereof while a tubular member 23 having a closed end serves to prevent the gas leaking through the opening 18 and also provides a suitable guide means for the end of the rod 17.

In the operation of the devicegthe gas enters the inlet 6 and fills the chamber 16, causing the same to rise under the gas pressure, whereupon the gas passes around the said chamber then through the open valve 12 into the conduit 7 and thence to the place of use. The gas may now be lighted and give a full flame for illumination purposes which will continue to burn as long as the valve 12 is open. The length of this illumination is dependent upon the length of time required for a complete ascent of the chamber 16, that is to say the chamber 16 moves upwardly under the gas pressure until it contacts with the valve 12 which is thereupon closed. This action of course cuts olf the full flow of the gas supply and the illumination light diminishes until only the pilot light is burning. IVhile this action is taking place the gas completely lls the casing, thereby equalizing the pressure on the chamber 16 which thereupon falls by gravity until it strikes the head 19 when the valve 12 isagain open. The gas may now escape to the burner and give a full llame until the chamber 16 again rising under pressure contacts with the valve 12 and closes the same. It will be noted when the valve 12 has been lowered by the falling of the chamber 16 that the pressures on either side thereof are equalized and therefore the weight of the valve maintains it open until such time as the chamber 16 complctes its rising stroke and again moves the valve to closed position. In closed position, as already explained, the pressure within the casing 1 is greater than in the conduit 7 and therefore the valve is held closed by pressure and its operation is effected, as previously explained.

It will now be apparent that I have devised a complete unitary structure, simple and effective in use and whereby a gas operated display device may be automatically regulated in such manner that a full illumination takes place for a certain interval and then is extinguished for a desired time and then relights.

It will now be apparent that I have devised a novel and useful construction which embodies the features of advantage enumerated as desirable in the statement of the invention and the above description and while I have in the present instance shown and described the preferred embodiment thereof which has been found in practice to give satisfactory and reliable results, it is to be understood that the same is susceptible of modification in various particulars without departing from the spirit or scope of the invention or sacrificing any of its advantages.

I-Iaving thus described my invention, what I claim as new and desire to secure by Letters Patent, is:

1. In a device of the character stated, a casing having an inlet opening and an outlet opening, said inlet opening having free communication with said casing at all times, a chamber movably mounted in'said casing and adapted to be operated by gas pressure, a valve controlling said outlet opening and located in the path of movement of said chamber and means actuated by said chamber for opening said valve.

2. In a device of the character stated, a casing having an inlet opening and an outlet opening, a chamber movably mounted in said casing and adapted to be operated by gas pressure, a valve controlling one of said openings and located in the path of movement of said chamber, a rod secured to said valve and having sliding engagement with said chamber and an abutment on said rod whereby said chamber shifts said rod to open said valve in one direction of movement of said chamber.

3. In a device of the character stated, a casing having an inlet opening and an outlet opening, said inlet opening having free communication with said casing at all times, a chamber movably mounted in said casing and adapted to be operated by gas pressure, a valve controlling said outlet opening and located in the path of movement of said chamber, means actuated by said chamber for opening said valve and a by-pass forming a communication between the interior of the chamber and t-he discharge, independent of the valve.

1. In a device of t-he character stated, a casing having an inlet opening and an outlet opening, a valve controlling said outletopening, a rod secured to said valve, a chamber slidingly mounted on said rod and movable with respect to said casing, a head on said rod and means to operate said chamber to alternately engage said valve and head whereby said valve is opened and closed.

5. In a device of the character stated, a casing having a discharge communicating with the upper portion thereof, a chamber movably mounted in said casing and adapted to be operated by gas pressure a valve above said chamber controlling said discharge and adapted to be closed by said chamber when the latter is in elevated position and means actuated by said chamber in its lowered position for opening said valve.

6. In a device of the character stated, a casing, having a discharge communicating with the upper portion of said casing, a chamber movably mounted within said casing and adapted to be operated by gas pressure, a valve above said chamber controlling said discharge, said chamber closing said valve when thelatter is in elevated position and opening the same when in lowered position, whereby free flow of gas through said discharge is permitted when said chamber is in lowered position while rising, and said 10 flow is cut oil when said chamber is in elevated position and while lowering and an inlet having free communication at all times with the interior of said casing.

FRANKLIN G. HIRST. Witnesses:

C. D. McVAY, N. BUssINGER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C. 

